Improvement in station-indicators



H. al. KAHN.

Station-Indicators. No. 148,466. Se Patemed'march1o'-1a74.

In renors MMV @l -f UNITED STATES PATENT OFFICE..

HUGO KAHN AND IsAAoKAEN, OE CHICAGO, ILLINOIS.

IMPROVEMENT IN STATION-INDICATORS.

Speccation rforming part of Letters Patent No. 148,466, dated March 10,1874; application filed November 24,1873.

4Cook and State of Illinois, have invented an Improvement inStation-Indicators, of which the following is a specification.:

This invention has for its object to provide an indicator with a dialand index on each face, to be hung in the middle of a railway or horsecar, the dials bea-ring the names of the streets and stations, and, bymeans of a ratchet, pawl, and spring, actuated by a pendent cord, theindex may be caused to point to the successive streets or stations.

Figure lis an elevation of one face of our street-indicator. Fig. 2 is asectional elevation of the same, the dial and index being removed. Fig.3 isa cross-section at x x in Fig. 1.

In the drawing, A A repr/esent two dials secured together at a properdistance apart by studs a a, with a shaft, b, journaled through the axesof said dials, to each end of which is secured an index, B. On saidshaft, within the dials, two bell-crank levers, C, are sleeved at theirangles, and between them a ratchetwheel, D, is secured to the saidshaft, and with it engages a reversible pawl, E, mounted on a shaft, c,journaled in the ends of the vertical arms of the levers C, one endprotruding through a slot, d, in one of the dials, where it receives anarrow-shaped weight, E', which serves to keep the pawl engaged with theratchet, and also to reverse the pawlwhen required. The longerhorizontal arms of the 1el vers C play between one of the studs a and astop, a, which limits the movement of the pawl to but one tooth of theratchet. A spiral spring, F, engaging with the long arms of the levers,keeps theln pulled up against the upper stop-stud. A cord, G, attachedto said levers, afford a means of pulling them down, whereby the pawlwill move the ratchet-wheel forward one tooth, carrying around theindexes a corresponding distance on the dials, around whose peripherythe names of the streets or stations are printed or painted.

As each street-crossin g or station is passed, the person in charge ofthe car has simply to pull the cord and let it go to move the index tothe name of the next street or station, so that passengers may avoidbeing carried beyond their destination.

The dial-indicator should be suspended in the middle of a car, so thatpassengers at each end can read it.

to secure by Letters Patent, is-

In a street and station indicator, the conibination of the dials A A,indexes B B, shaft b, ratchet D, bell-crank levers G C, which are heldin position by spring F, and actuated by cord G and reversible pawl E,the several parts being constructed and operating substantially asdescribed.

HUGO KAHN.

ISAAC KAHN. Witnesses:

HENRY BOssMANN, HERMAN BIsOHOFF.

What we claim as our invention, and desire f

